King James Version
And said, By myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thine only son:New International Version
and said, "I swear by myself, declares the LORD, that because you have done this and have not withheld your son, your only son,Catholic Public Domain Version
"By my own self, I have sworn, says the Lord. Because you have done this thing, and have not spared your only begotten son for my sake